Numerical assessment of ejector operation for refrigeration applications based on CFD

Bartosiewicz, Yann; Aidoun, Zine; Mercadier, Yves

doi:10.1016/j.applthermaleng.2005.07.003

Cited by 150 publications

(67 citation statements)

References 18 publications

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“…More recently (within the last decade), CFD simulations looking at flow (both single-phase and two-phase) through an ejector have become more complex in the aspect of modeling [9][10][11][12][13]. More sophisticated turbulence models have been used to better predict the flow and compressibility effects have been added too.…”

Section: Ejector Flow Studies Using Cfdmentioning

confidence: 99%

“…The additional liquid line (9) circulates the liquid from the separator (6) and moves it through the pump (10), and continues back to the ejector (4). The evaporator (2) absorbs heat from the source (11), and the condenser (5) is connected to the heat sink (12) [3].…”

Section: Application Of Condensing Ejectormentioning

confidence: 99%

“…Analytical models have been made to better describe the experimental results. In the past few decades, CFD has been used to describe two-phase flow through nozzles, with some work particularly looking at the condensing ejector [8][9][10][11][12][13][14].…”

Section: Early Experimental Work On Condensing Ejectorsmentioning

confidence: 99%

See 2 more Smart Citations

Multidimensional modeling of condensing two-phase ejector flow

Colarossi

Trask

Schmidt

et al. 2012

International Journal of Refrigeration

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Section: Ejector Flow Studies Using Cfdmentioning

confidence: 99%

Section: Application Of Condensing Ejectormentioning

confidence: 99%

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Multidimensional modeling of condensing two-phase ejector flow

Colarossi

Trask

Schmidt

et al. 2012

International Journal of Refrigeration

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“…The most proper model should be selected against the flow physics, accuracy requirement, computing resources and simulation time. Since the RC DTH hammer drill bit was design with multiple ejectors, it is worthwhile to refer to the previous CFD simulations of ejector flow fields [18][19][20][21][22][23] before selecting the turbulence model. After long deliberation, the author selected the realisable k-ε model for the simulation.…”

Section: Solver Settingsmentioning

confidence: 99%

Effect of suction nozzle structure on reverse circulation performance of down-the-hole hammer drill bit

Zhao¹,

Li²,

Yin³

et al. 2017

IJHT

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This paper aims to disclose the effect of suction nozzle structure on the RC suction capacity of DTH drill bit. For this purpose, three different types of suction nozzles were developed for the DTH drill bit. Then, the CFD software was adopted to simulate the fluid movement in a hole and the DTH drill bit. The results show that type three ranked first in terms of RC suction capacity, while type two came at the bottom. Then, the entrainment ratio was introduced to quantify the RC capacity. The results show that the RC capacity of type three is about 6 times of that of the other two types of nozzles. Our research opens up a new direction for future engineering practices.

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“…Judging from recent studies [3][4][5][6][7][8][9], computational fluid dynamics becomes a usual tool to investigate and predict ejectors global operation, understand the complex local flow physics and its link with the overall performances, in order to perform better design of this device or the cycle. However, in a previous paper [1], authors pointed out some shortcomings usually done by using the CFD approach.…”

Section: Introductionmentioning

confidence: 99%